Intel Ethernet Network Adapter E835-XXVDA4 - PCI Express 4.0 - 25 Gbit/s Data Transfer Rate - Optical Fiber - Low Profile and Full Height Bracket Height - 25GBase-CR, 25GBase-CR1, 25GBase-SR, 25GBase-

The Intel E835-XXVDA4 is a PCIe 4.0 25GbE Ethernet network adapter for data-center, enterprise, and communications systems that need high-speed networking with SFP28 or SFP+ connectivity.

Recommended For

• Data-center and edge-server operators adding several 25GbE links to one host for dense network connectivity, storage traffic, or server uplinks; this card provides four SFP28 ports.
• Virtualization and cloud-host administrators building hosts that can use network virtualization features such as SR-IOV, traffic management, or RDMA, provided their operating system and network setup support those features.
• Storage-server and HPC operators moving sustained traffic between servers or storage systems over a 25GbE network, especially where multiple links or RDMA are part of the design.
• Network engineers connecting a server to compatible SFP28 switches or optical/DAC infrastructure who need four ports that can operate at 25, 10, or 1GbE.

Real-World Use Scenarios

• A server operator adding a host to a 25GbE network can use the card’s four ports for multiple switch connections; the result is more high-speed links from one PCIe slot, provided the switch and cabling are compatible.
• A storage or compute server moving large amounts of data can use RDMA over a configured RoCEv2 or iWARP network; this can reduce host CPU work during transfers, but the endpoints and network must support the selected RDMA setup.
• A server being upgraded from 10GbE can connect to compatible 10GbE equipment while using 25GbE links where the rest of the network supports them, allowing a staged move to faster links rather than requiring every connection to change at once.
• A virtualization or network-functions host using DPDK and Open vSwitch can use the adapter’s packet-processing features to reduce some processing work on the host CPU; the benefit depends on the software stack and workload.
• A service provider deploying timing-sensitive functions such as vRAN can use the adapter’s PTP and PTM support as part of a synchronized server setup; achieving the desired timing depends on the full platform and network configuration.

Spec Summary